JP7613692B2 - アンモニアの製造方法及び製造装置 - Google Patents
アンモニアの製造方法及び製造装置 Download PDFInfo
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- JP7613692B2 JP7613692B2 JP2021544059A JP2021544059A JP7613692B2 JP 7613692 B2 JP7613692 B2 JP 7613692B2 JP 2021544059 A JP2021544059 A JP 2021544059A JP 2021544059 A JP2021544059 A JP 2021544059A JP 7613692 B2 JP7613692 B2 JP 7613692B2
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- cathode
- molybdenum complex
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- ammonia
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 194
- 229910021529 ammonia Inorganic materials 0.000 title claims description 97
- 238000004519 manufacturing process Methods 0.000 title claims description 58
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 60
- 229910052750 molybdenum Inorganic materials 0.000 claims description 60
- 239000011733 molybdenum Substances 0.000 claims description 60
- 125000000217 alkyl group Chemical group 0.000 claims description 57
- 239000003054 catalyst Substances 0.000 claims description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 125000003545 alkoxy group Chemical group 0.000 claims description 23
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 22
- 239000012528 membrane Substances 0.000 claims description 22
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 20
- 239000003792 electrolyte Substances 0.000 claims description 20
- 125000005843 halogen group Chemical group 0.000 claims description 19
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- 239000003446 ligand Substances 0.000 claims description 15
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- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 13
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- 229910052740 iodine Inorganic materials 0.000 claims description 7
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 6
- 125000002947 alkylene group Chemical group 0.000 claims description 5
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 description 4
- 238000004255 ion exchange chromatography Methods 0.000 description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
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- 125000004218 chloromethyl group Chemical group [H]C([H])(Cl)* 0.000 description 3
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- 125000004122 cyclic group Chemical group 0.000 description 3
- MKNXBRLZBFVUPV-UHFFFAOYSA-L cyclopenta-1,3-diene;dichlorotitanium Chemical compound Cl[Ti]Cl.C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 MKNXBRLZBFVUPV-UHFFFAOYSA-L 0.000 description 3
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- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
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- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- XQKBFQXWZCFNFF-UHFFFAOYSA-K triiodosamarium Chemical compound I[Sm](I)I XQKBFQXWZCFNFF-UHFFFAOYSA-K 0.000 description 3
- XUAXVBUVQVRIIQ-UHFFFAOYSA-N 1-butyl-2,3-dimethylimidazol-3-ium Chemical compound CCCCN1C=C[N+](C)=C1C XUAXVBUVQVRIIQ-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
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- BXHHZLMBMOBPEH-UHFFFAOYSA-N diethyl-(2-methoxyethyl)-methylazanium Chemical compound CC[N+](C)(CC)CCOC BXHHZLMBMOBPEH-UHFFFAOYSA-N 0.000 description 2
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- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000002933 cyclohexyloxy group Chemical group C1(CCCCC1)O* 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001887 cyclopentyloxy group Chemical group C1(CCCC1)O* 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 125000000131 cyclopropyloxy group Chemical group C1(CC1)O* 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003707 hexyloxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- JZMJDSHXVKJFKW-UHFFFAOYSA-M methyl sulfate(1-) Chemical compound COS([O-])(=O)=O JZMJDSHXVKJFKW-UHFFFAOYSA-M 0.000 description 1
- 150000002751 molybdenum Chemical class 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
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Description
前記錯体は、
(A)PNP配位子として2,6-ビス(ジアルキルホスフィノメチル)ピリジン(但し、2つのアルキル基は同じでも異なっていてもよく、ピリジン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(B)PCP配位子として1,3-ビス(ジアルキルホスフィノメチル)ベンゾイミダゾール-2-イリデン(但し、2つのアルキル基は同じでも異なっていてもよく、ベンゼン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(C)PPP配位子としてビス(ジアルキルホスフィノエチル)アリールホスフィン(但し、2つのアルキル基は同じでも異なっていてもよい)を有するモリブデン錯体、又は、
(D)trans-Mo(N2)2(R5R6R7P)4(但し、R5及びR6は同じでも異なっていてもよいアリール基であり、R7はアルキル基であり、2つのR7は互いに繋がってアルキレン鎖を形成していてもよい)で表されるモリブデン錯体であり、
前記プロトン源は、電解質膜、カソード槽に用いる溶液、又は電解質膜及びカソード槽に用いる溶液の双方を用いる、
アンモニアの製造方法である。
イオン交換膜をカソード及びアノードで挟持した構造の膜電極接合体、前記膜電極接合体を挟み込む一対の集電体、前記アノードに接する集電体側に配置されたアノード槽、前記カソードに接する集電体側に配置されたカソード槽、及び前記カソード槽に窒素ガスを供給する窒素ガス供給部を備えた装置本体と、
前記装置本体の外側で前記一対の集電体に接続された電源装置と、
を備え、
前記カソードは、触媒として、
(A)PNP配位子として2,6-ビス(ジアルキルホスフィノメチル)ピリジン(但し、2つのアルキル基は同じでも異なっていてもよく、ピリジン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(B)PCP配位子として1,3-ビス(ジアルキルホスフィノメチル)ベンゾイミダゾール-2-イリデン(但し、2つのアルキル基は同じでも異なっていてもよく、ベンゼン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(C)PPP配位子としてビス(ジアルキルホスフィノエチル)アリールホスフィン(但し、2つのアルキル基は同じでも異なっていてもよい)を有するモリブデン錯体、又は、(D)trans-Mo(N2)2(R5R6R7P)4(但し、R5及びR6は同じでも異なっていてもよいアリール基であり、R7はアルキル基であり、2つのR7は互いに繋がってアルキレン鎖を形成していてもよい)で表されるモリブデン錯体を含み、
前記アノードは、水からプロトンを生成する触媒を含む、
ものである。
1.アンモニア製造装置10の作製
まず、アノード23を以下のようにして作製した。アノード23に用いる触媒インクは、白金担持カーボン(田中貴金属工業社製、白金含有量:46.5重量%、品名「TEC10E50E」)、脱イオン水、エタノール(富士フイルム和光純薬社製)、および電解質としてのナフィオン分散溶液(富士フイルム和光純薬社製、品名「5% Nafion Dispersion Solution DE521 CS type」)を用いて調製した。ガラス製のバイアル瓶に、白金担持カーボン、脱イオン水、エタノール及びナフィオン分散溶液を、この順序で加えて、得られた分散溶液を、マイクロテック・ニチオン社製の超音波ホモジナイザーSmurt NR-50Mを用いて超音波を出力40%に設定して30分間照射することで、触媒インクを調製した。次に、この触媒インクを、80℃にしたホップレートに固定したカーボンペーパー(東レ社製、品名「TGP-H-090H」、2.9cm×2.9cmの正方形)に塗布した。塗布量は、塗布した面1cm2あたりの白金量が2.4mgとなるようにした。このようにして、白金触媒(20mg)が含まれるアノード23を作製した。
イオノマーの割合(重量%)
=[イオノマーの固形分(重量)/〔{白金担持カーボン(重量)+イオノマーの固形分(重量)}]×100
具体的には、イオノマーがナフィオンである場合、白金担持カーボンの量を100.0mg、ナフィオン分散溶液の量を837μL、脱イオン水の量を0.6mL、エタノールの量を5mLと設定した。ナフィオン分散溶液(837μL)中のナフィオン固形分は38.9mgであった。
以上のようにして組み上げたアンモニア製造装置10を用いて以下の条件でアンモニアを製造した。
装置本体20の温度:25~28℃(室温)
電源装置30:Princeton Applied Research社製のVersaSTAT 4を使用して電圧と電流の測定も行った。
アノード槽26:精製水(8mL)
カソード槽27:1-ブチル-1-メチルピロリジニウムビス(トリフルオロメタンスルホニル)イミド(8mL)
測定条件:-2.3Vで50分間の定電位測定を行った。
カソード24に添加する触媒をモリブデン錯体からチタノセンジクロリドに変更した以外は、上述した実験例1と同様にしてアンモニア製造装置10を作製した。具体的には、カソード24を以下のようにして作製した。すなわち、チタノセンジクロリド(46.5mg)と上述した組成物1(92.4mg)とを乳鉢で擦りつぶし、錯体、ケッチェンブラック及びナフィオンとの混合物とした後、その混合物(39mg)とイオン液体(1-ブチル-1-メチルピロリジニウムビス(トリフルオロメタンスルホニル)イミド、300μL)との分散液をカーボンペーパーに塗布し、カソード24を得た。
カソード24に触媒を添加せずに作製した以外は、上述した実験例1と同様にしてアンモニア製造装置10を作製した。このアンモニア製造装置10を用いて実験例1と同様にしてアンモニアの製造を試みた。その結果を表1に示す。実験例3では、アンモニア生成量は0.121μmolであり、アンモニア製造装置10の部材由来のアンモニアを確認した。
カソードの触媒としてモリブデン錯体を使用した実験例1では、カソードの触媒としてチタノセンジクロリドを使用した実験例2よりも10倍以上の多くのアンモニアが生成することが分かった。また、カソードに触媒を添加しなかった実験例3では、アンモニアは実質的には生成しなかった。なお、実験例1が本発明の実施例に相当し、実験例2,3が比較例に相当する。
カソード24に添加する触媒をモリブデン錯体(2)
カソード24に添加する触媒をモリブデン錯体(3)
1.アンモニア製造装置10の作製
アノード23を以下のようにして作製した。カーボンペーパー(東レ社製、品名「TGP-H-090H」、2.7cm×2.7cmの正方形)のサイズ及び塗布量を変更した以外は、実験例1のアノード23と同様にして実験例6のアノード23を作製した。塗布量は、塗布した面1cm2あたりの白金量が1.0mgになるようにした。具体的には、アノード23は、白金触媒(7.3mg)が片面に塗られたカーボンペーパーである。
以上のようにして組み上げたアンモニア製造装置10を用いて以下の条件でアンモニアを製造した。
装置本体20の温度:25~28℃(室温)
電源装置30:Princeton Applied Research社製のVersaSTAT 4を使用して電圧と電流の測定も行った。
アノード槽26:0.02mol/Lの硫酸水溶液(6mL)
カソード槽27:1-ブチル-1-メチルピロリジニウムビス(トリフルオロメタンスルホニル)イミド(6mL)
測定条件:-2.3Vで60分間の定電位測定を行った。
カソード24を作製する際の触媒インクに用いる溶液を、ジクロロメタン(1.0mL)に変更した事と、カソード槽27に用いる溶液を、0.02mol/Lの硫酸水溶液(6mL)に変更した以外は、上述した実験例6と同様にしてアンモニア製造装置10を作製し、アンモニアの製造を実施した。アンモニア生成量は0.20μmol、使用電気量は105.1C、変換効率は0.06%であった。錯体1μmolあたりのアンモニア生成量は606.1nmolであった。同じモリブデン錯体(3)を使用した実施例5との比較にあたり、50分あたりの錯体1μmolあたりのアンモニア生成量は、505.1nmolとなり、3倍程度の向上が見られた。なお、実験例6,7は本発明の実施例に相当する。
Claims (8)
- 錯体及びプロトン源の存在下、電源から供給される電子により窒素分子からアンモニアを製造する方法であって、
前記錯体は、
(A)PNP配位子として2,6-ビス(ジアルキルホスフィノメチル)ピリジン(但し、2つのアルキル基は同じでも異なっていてもよく、ピリジン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(B)PCP配位子として1,3-ビス(ジアルキルホスフィノメチル)ベンゾイミダゾール-2-イリデン(但し、2つのアルキル基は同じでも異なっていてもよく、ベンゼン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(C)PPP配位子としてビス(ジアルキルホスフィノエチル)アリールホスフィン(但し、2つのアルキル基は同じでも異なっていてもよい)を有するモリブデン錯体、又は、(D)trans-Mo(N2)2(R5R6R7P)4(但し、R5及びR6は同じでも異なっていてもよいアリール基であり、R7はアルキル基であり、2つのR7は互いに繋がってアルキレン鎖を形成していてもよい)で表されるモリブデン錯体であり、
前記プロトン源は、電解質膜、カソード槽に用いる溶液、又は電解質膜及びカソード槽に用いる溶液の双方を用いる、
アンモニアの製造方法。 - 前記窒素分子として、常圧の窒素ガスを用いる、
請求項1~5のいずれか1項に記載のアンモニアの製造方法。 - イオン交換膜をカソード及びアノードで挟持した構造の膜電極接合体、前記膜電極接合体を挟み込む一対の集電体、前記アノードに接する集電体側に配置されたアノード槽、前記カソードに接する集電体側に配置されたカソード槽、及び前記カソード槽に窒素ガスを供給する窒素ガス供給部を備えた装置本体と、
前記装置本体の外側で前記一対の集電体に接続された電源装置と、
を備え、
前記カソードは、触媒として、
(A)PNP配位子として2,6-ビス(ジアルキルホスフィノメチル)ピリジン(但し、2つのアルキル基は同じでも異なっていてもよく、ピリジン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(B)PCP配位子として1,3-ビス(ジアルキルホスフィノメチル)ベンゾイミダゾール-2-イリデン(但し、2つのアルキル基は同じでも異なっていてもよく、ベンゼン環の少なくとも1つの水素原子はアルキル基、アルコキシ基又はハロゲン原子に置換されていてもよい)を有するモリブデン錯体、
(C)PPP配位子としてビス(ジアルキルホスフィノエチル)アリールホスフィン(但し、2つのアルキル基は同じでも異なっていてもよい)を有するモリブデン錯体、又は、(D)trans-Mo(N2)2(R5R6R7P)4(但し、R5及びR6は同じでも異なっていてもよいアリール基であり、R7はアルキル基であり、2つのR7は互いに繋がってアルキレン鎖を形成していてもよい)で表されるモリブデン錯体を含み、
前記アノードは、水からプロトンを生成する触媒を含む、
アンモニア製造装置。 - 前記アノード槽に用いる溶液は、水又は硫酸水溶液(H2SO4を含む水)であり、前記カソード槽に用いる溶液は、水、硫酸水溶液(H2SO4を含む水)又はイオン液体である、
請求項7に記載のアンモニア製造装置。
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